Mitsubishi Electric MSY-GN71VF User manual
ENGLISH
REFRIGERANT
1. BEFORE INSTALLATION
WARNING
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1-1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
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CAUTION
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WARNING &RXOGOHDGWRGHDWKVHULRXVLQMXU\HWF
■Install an earth leakage breaker depending on the
installation place.
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electric shock.
■Perform the drainage/piping work securely according
to the installation manual.
If there is defect in the drainage/piping work, water could
dropfromtheunit,soakinganddamaginghouseholdgoods.
■DRQRW WRXFK WKH DLU LQOHW RU WKH DOXPLQXP ¿QV RI WKH
outdoor unit.
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■Do not install the outdoor unit where small animals
may live.
Ifsmall animals enter and touchthe electric parts inside the
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Also, advise user to keep the area around the unit clean.
■Do not operate the air conditioner during interior
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ÀRRU.
Beforeoperatingtheairconditioner, ventilate the room well
aftersuch work is performed. Otherwise, itmay cause vola-
tile elements to adhere inside the air conditioner, resulting
in water leakage or scattering of dew.
MEANINGS OF SYMBOLS DISPLAYED ON INDOOR UNIT AND/OR OUTDOOR UNIT
JG79B941H01
Model names are indicated in 1-3.
Required Tools for Installation
Phillips screwdriver
Level
Scale
Utility knife or scissors
75 mm hole saw
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Wrench (or spanner)
4 mm hexagonal wrench
Flare tool for R32, R410A
Gauge manifold for R32, R410A
Vacuum pump for R32, R410A
Charge hose for R32, R410A
Pipe cutter with reamer
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INSTALLATION MANUAL
■Do not install the unit by yourself (user).
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installer.
■Perform the installation securely referring to the
installation manual.
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■When installing the unit, use appropriate protective
equipment and tools for safety.
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■Install the unit securely in a place which can bear the
weight of the unit.
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connect other electrical appliances to the circuit.
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LVLQFRPSOHWHHOHFWULFDOZRUNLWFRXOGUHVXOWLQD¿UHRUDQ
electric shock.
■Earth the unit correctly.
Do not connect the earth to a gas pipe, water pipe, light-
ning rod, or telephone earth. Defective earthing could
cause electric shock.
■ DRQRW GDPDJH WKH ZLUHV E\ DSSO\LQJ H[FHVVLYH SUHV-
sure with parts or screws.
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■ Be sure to cut off the main power in case of setting
up the indoor P.C. board or wiring works.
Failure to do so could cause electric shock.
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the terminal block connecting sections so the stress
of the wires is not applied to the sections. Do not
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■ DRQRW LQVWDOO WKH XQLW LQ DSODFH ZKHUH LQÀDPPDEOH
gas may leak.
If gas leaks and accumulates in the area around the unit,
it could cause an explosion.
■Do not use intermediate connection of the power
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devices to one AC outlet.
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current, etc.
■ %H VXUH WR XVH WKH SDUWV SURYLGHG RU VSHFL¿HG SDUWV
for the installation work.
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etc.
■ When plugging the power supply plug into the outlet,
make sure that there is no dust, clogging, or loose
parts in both the outlet and the plug. Make sure that
the power supply plug is pushed completely into the
outlet.
If there is dust, clogging, or loose parts on the power
supply plug or the outlet, it could cause electric shock or
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replace it.
■ Attach the electrical cover to the indoor unit and the
service panel to the outdoor unit securely.
If the electrical cover of the indoor unit and/or the service
paneloftheoutdoorunitarenotattachedsecurely,itcould
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■ When installing, relocating, or servicing the unit,
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refrigerant (R32) enters the refrigerant circuit.
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could lead to a serious impediment to securing product
safety.
■ Do not discharge the refrigerant into the atmosphere.
If refrigerant leaks during installation, ventilate the
room. Check that the refrigerant does not leak after
installation has been completed.
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ing part of such a fan heater, kerosene heater, or cooking
stove, it will create harmful gas.
■ Use appropriate tools and piping materials for instal-
lation.
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appropriate tools or materials and incomplete installation
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■ When pumping down the refrigerant, stop the com-
pressor before disconnecting the refrigerant pipes.
If the refrigerant pipes are disconnected while the com-
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drawn in and the pressure in the refrigeration cycle could
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■ Wheninstallingtheunit,securelyconnecttherefriger-
ant pipes before starting the compressor.
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drawn in and the pressure in the refrigeration cycle could
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■ FDVWHQ DÀDUH QXW ZLWK DWRUTXH ZUHQFK DV VSHFL¿HG
in this manual.
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period and cause refrigerant leakage.
■ The unit shall be installed in accordance with national
wiring regulations.
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equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
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heating part, it will create harmful gas and there is risk of
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■ Do not usemeansto accelerate thedefrosting process
or to clean, other than those recommended by the
manufacturer.
■ The appliance shall be stored in a room without
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SOH RSHQ ÀDPHV DQ RSHUDWLQJ JDV DSSOLDQFH RU DQ
operating electric heater.
■ Do not pierce or burn.
■ Be aware that refrigerants may not contain an odour.
■ Pipe-work shall be protected from physical damage.
■ The installation of pipe-work shall be kept to a mini-
mum.
■ Compliance with national gas regulations shall be
observed.
■ Keep any required ventilation openings clear of ob-
struction.
■ In Australia, only technicians that possess the appro-
priate license issued by the Australian Refrigeration
Council (ARC) should install this product.
Appropriate personal protective equipment
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1-2. SELECTING THE INSTALLATION LOCATION
1-3. SPECIFICATIONS
*1 Connect to the power switch which has a gap of 3 mm or more when open to interrupt
the source power phase. (When the power switch is shut off, it must interrupt all phases.)
*2 Use wires in conformity with design 60245 IEC 57.
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*4 Use a copper pipe or a copper-alloy seamless pipe.
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*7 If pipe length exceeds 7 m, additional refrigerant (R32) charge is required. (No additional
charge is required for pipe length less than 7 m.)
Additional refrigerant = A × (pipe length (m) – 7)
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Model Power supply *1 :LUHVSHFL¿FDWLRQV Pipe size
(thickness *3, *4) Maximum amount of
refrigerant charge *7
Indoor unit Outdoor unit Rated voltage Frequency Breaker capacity Power supply *2 Indoor/outdoor
connecting wire *2 Gas / Liquid
MSY-GN71VF MUY-GN71VF 230 V 50 Hz 20 A 3-core
2.5 mm24-core
1.0 mm2ø12.7 / 6.35 mm
(0.8 mm) 1960 g
MSY-GN80VF MUY-GN80VF
Note:
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directly to wind.
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side of the outdoor unit.
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maldehyde, etc., which may cause chemical cracking.
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Pipe length and height difference
Max. pipe length 30 m
Max. height difference 15 m
0D[QXPEHURIEHQGV 10
5HIULJHUDQWDGMXVWPHQW$ 20 g/m
Insulation thickness *8, *9
8 mm
INDOOR UNIT
WARNING
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PD\LQWHUIHUHZLWKUDGLRRU79UHFHSWLRQ$QDPSOL¿HUPD\EHUHTXLUHGIRUWKHDIIHFWHG
device.
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PDNHWKHLQIUDUHGUHPRWHFRQWUROFDQRSHUDWHWKHDLUFRQGLWLRQHUQRUPDOO\7KHKHDWIURP
the lights may cause deformation or the ultraviolet may cause deterioration.
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REMOTE CONTROLLER
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FRQWUROOHUDUHVXUHO\UHFHLYHGE\WKHLQGRRUXQLWIURPWKDWSRVLWLRQµEHHS¶RUµEHHSEHHS¶
receiving tone sounds). After that, attach remote controller holder to a pillar or wall and
install wireless remote controller.
Note:
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FRQWUROOHUPD\QRWEHUHFHLYHG
OUTDOOR UNIT
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GHIURVWLQJWKHGHIURVWLQJWLPHZLOOEHORQJHU
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:KHUHULJLG ZDOO RU VXSSRUW LVDYDLODEOH WR SUHYHQW WKH LQFUHDVHRIRSHUDWLRQ VRXQG RU
YLEUDWLRQ
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:KHUHLWLV DW OHDVWP DZD\ IURPWKHDQWHQQD RI 79VHWRU UDGLR 2SHUDWLRQ RIWKH DLU
FRQGLWLRQHUPD\LQWHUIHUHZLWKUDGLRRU79UHFHSWLRQLQDUHDVZKHUHUHFHSWLRQLVZHDN$Q
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Note:
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ted from there.
1-4. INSTALLATION DIAGRAM
Note:
*1Place indoor/outdoor unit connecting wire(A)
and power supply cord (K) at least 1 m away
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PARTS TO BE PROVIDED AT YOUR SITE
(A)
Indoor/outdoor unit connecting wire*1
1
(B) Extension pipe 1
(C) Wall hole sleeve 1
(D) Wall hole cover 1
(E) 3LSH¿[LQJEDQG 2 to 5
(F) Fixing screw for (E) 4 × 20 mm 2 to 5
(G) Piping tape 1
(H) Putty 1
(I) Drain hose
(or soft PVC hose, 15 mm inner
diameter or hard PVC pipe VP16) 1 or 2
(J) Refrigeration oil 1
(K) Power supply cord*1 1
ACCESSORIES
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<Indoor unit>
(1) Installation plate 1
(2) ,QVWDOODWLRQSODWH¿[LQJVFUHZ
4 × 25 mm 7
(3) Wireless remote controller 1
(4) Felt tape
(For left or left-rear piping) 1
(5) Remote controller holder 1
(6) Fixing screw for (5) 3.5 × 16 mm
(Black) 2
(7) Battery (AAA) for (3) 2
(G)
(E)
(C)
(4) (D)
(F)
(B)
(K)
(A)
(I)
(7)
(3) (5)
(6)
149 mm
or more
55
mm or
more/
118
mm or
more for left and left
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spacer)
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or metal netting, use a chemically treated wooden piece 20 mm or thicker
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around the piping.
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the dimension for new refrigerant.
Appearance of the outdoor unit may differ from some models.
140
mm
or more
12 mm
or more
1.8 m to 2.3 m from the
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clear *2
100 mm
or more
100 mm
or more
350 mm
or more
500 mm *3
or more
Air inlet
Air outlet
Outdoor unit installation
40 mm
2-10 mm × 21 mm slot
840 mm
175 mm
500 mm
390 mm
330 mm
349-371 mm
*2 500 mm or more when front and
sides of unit are clear
*3 When any 2 sides of left, right and rear of
unit are clear
IMPORTANT NOTES
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requirements.
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HOHFWULFDOLQVWDOODWLRQVZLULQJUXOHVWKHHOHFWULFDOZLULQJUHTXLUHGEHWZHHQ
WKHLQGRRUDQGRXWGRRUXQLWVPXVWEHLQVWDOOHGE\DOLFHQFHGHOHFWULFDO
contractor.
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VXUHYLEUDWLRQVKDUSHGJHVRUDQ\RWKHUDGYHUVHHQYLURQPHQWDOHIIHFWV
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YLEUDWLRQIURPVRXUFHVVXFKDVFRPSUHVVRUVRUIDQV
After the leak test, apply insulating material tightly so
that there is no gap.
WARNING
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indoors.
WARNING
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([WHUQDOGDPDJHRQWKHUHIULJHUDQWSLSLQJFDQEHFDXVHRI¿UH
Be sure to use wall hole
sleeve (C) to prevent in-
door/outdoor connecting
wire (A) from contacting
metal parts in the wall
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rodents in case the wall
is hollow.
Indoor unit
Wall hole
sleeve (C)
Cut off the
extra length. 3LSH¿[LQJEDQG(
Wall hole cover (D)
Seal the wall hole gap
with putty (H).
Fix the pipe to wall
ZLWKSLSH¿[LQJEDQG
(E).
Fixing screw (F)
Air inlet
Left or left-rear piping
Note:
Be sure to reattach the drain
hose and the drain cap in case
of left or left-rear piping.
Otherwise,itcould cause drops
of water to drip down from the
drain hose.
1) Put the refrigerant piping and the drain hose together,
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8VHDEDQGDJHVWRSSHUDWWKHHQGRIIHOWWDSH
2) Pull out the drain cap at the rear right of the indoor unit.
(Fig. 1)
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cap.
3) Pull out the drain hose at the rear left of the indoor unit.
(Fig. 2)
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drain hose forward.
4) Put the drain cap into the section to which the drain
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(Fig. 3)
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the hole at the end of the cap and insert the cap fully
into the drain pan.
5) Insert the drain hose fully into the drain pan at the rear
right of the indoor unit. (Fig. 4)
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of its inserting part at the drain pan.
6) Insert the drain hose into wall hole sleeve (C), and hook
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movethe indoor unit completely to the left inordertomake
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&XWRXWDSLHFHRIFDUGERDUGIURPWKHVKLSSLQJER[UROO
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lift the indoor unit. (Fig. 5)
8) Connect the refrigerant piping with the extension pipe
(B).
7KUXVWWKHORZHUSDUWRIWKHLQGRRUXQLWLQWRWKHLQVWDOODWLRQ
plate (1).
Drain cap
Drain cap
Drain hose
Cut off in case of left
piping.
Drain cap
Piping tape (G)
Drain hose
Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Felt tape (4)
2-4. PIPE FORMING AND DRAIN PIPING
Pipe Forming
3ODFHWKHGUDLQKRVHEHORZWKHUHIULJHUDQWSLSLQJ
0DNHVXUHWKDWWKHGUDLQKRVHLVQRWKHDYHGRUVQDNHG
'RQRWSXOOWKHKRVHZKHQDSSO\LQJWKHWDSH
:KHQWKHGUDLQKRVHSDVVHVWKHURRPEHVXUHWRZUDSLQVXOD-
WLRQPDWHULDOREWDLQDEOHDWDVWRUHDURXQGLW
2-1. FIXING OF INSTALLATION PLATE
)LQGDVWUXFWXUDOPDWHULDOVXFKDVDVWXGLQWKHZDOODQG¿[LQVWDOODWLRQSODWHKRUL-
]RQWDOO\E\WLJKWHQLQJWKH¿[LQJVFUHZV¿UPO\
7RSUHYHQWLQVWDOODWLRQSODWHIURPYLEUDWLQJEHVXUHWRLQVWDOOWKH¿[LQJVFUHZVLQWKH
KROHVLQGLFDWHGLQWKHLOOXVWUDWLRQ)RUDGGHGVXSSRUW¿[LQJVFUHZVPD\DOVREHLQVWDOOHG
in other holes.
:KHQWKHNQRFNRXWLVUHPRYHGDSSO\YLQ\OWDSHWRWKHNQRFNRXWHGJHVWRSUHYHQWGDPDJ-
ing the wires.
:KHQEROWVUHFHVVHGLQWKHFRQFUHWHZDOODUHWREHXWLOL]HGVHFXUHLQVWDOODWLRQSODWH
using 11 × 20 · 11 × 26 oval hole (450 mm pitch).
,IWKHUHFHVVHGEROWLVWRRORQJFKDQJHLWIRUDVKRUWHURQHDYDLODEOHLQWKHPDUNHW
2-2. WALL HOLE DRILLING
1) Determine the wall hole position.
'ULOO D ¡ PP KROH 7KH RXWGRRU VLGH VKRXOG EH
5 to 7 mm lower than the indoor side.
3) Insert wall hole sleeve (C).
2-3. CONNECTING WIRES FOR INDOOR UNIT
You can connect indoor/outdoor lead wire without removing the front panel.
1) Open the front panel.
2) Remove VA clamp.
3DVVLQGRRURXWGRRUXQLWFRQQHFWLQJZLUH$IURPWKHEDFNRIWKHLQGRRUXQLWDQGSURFHVV
the end of the wire.
/RRVHQWHUPLQDOVFUHZDQGFRQQHFW¿UVWWKHHDUWKZLUHWKHQLQGRRURXWGRRUXQLWFRQ-
QHFWLQJZLUH$WRWKHWHUPLQDOEORFN%HFDUHIXOQRWWRPDNHPLVZLULQJ)L[WKHZLUHWR
WKHWHUPLQDOEORFNVHFXUHO\VRWKDWQRSDUWRILWVFRUHLVDSSHDUHGDQGQRH[WHUQDOIRUFH
LVFRQYH\HGWRWKHFRQQHFWLQJVHFWLRQRIWKHWHUPLQDOEORFN
5) Firmly tighten the terminal screws to prevent them from loosening. After tightening, pull
WKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
6) Secure indoor/outdoor unit connecting wire (A) the earth wire with the VA clamp. Never
fail to hook the left claw of the VA clamp. Attach the VA clamp securely.
2. INDOOR UNIT INSTALLATION
Rear, right, or downward piping
1) Put the refrigerant piping and the drain hose
WRJHWKHUWKHQ¿UPO\DSSO\SLSLQJWDSH*IURP
the end.
2) Insertthepiping and the drain hose intothe wall
hole sleeve (C), and hook the upper part of the
indoor unit on the installation plate (1).
&KHFNLIWKHLQGRRUXQLWLVKRRNHGVHFXUHO\RQWKHLQVWDOODWLRQSODWHE\PRYLQJ
the unit to left and right.
7KUXVWWKHORZHUSDUWRIWKHLQGRRUXQLWLQWRWKHLQVWDOODWLRQSODWH
Drain Piping
,IWKHH[WHQVLRQGUDLQKRVHKDVWRSDVVWKURXJKDURRPEHVXUHWRZUDSLWZLWKFRPPHU-
cially sold insulation.
7KHGUDLQKRVHVKRXOGSRLQWGRZQZDUGIRUHDV\GUDLQÀRZ)LJ
,IWKHGUDLQKRVHSURYLGHGZLWKWKHLQGRRUXQLWLVWRRVKRUWFRQQHFWLWZLWKGUDLQKRVH,
WKDWVKRXOGEHSURYLGHGDW\RXUVLWH)LJ
:KHQFRQQHFWLQJWKHGUDLQKRVHWRWKHKDUGYLQ\OFKORULGHSLSHEHVXUHWRLQVHUWLWVHFXUHO\
into the pipe. (Fig. 3)
'RQRWPDNHGUDLQSLSLQJDVVKRZQEHORZ
Do not raise Accumulated
drain water
Air
Waving
Water
leakage
Water
leakage Water
leakage
7LSRIGUDLQ
hose dipped
in water
Ditch
At least
50 mm
gap
Cut off in case of
right piping.
Cut off in case of
downward piping.
Downward
slope
Drain
hose
Soft hose
I.D. 15 mm
Drain hose
Hard vinyl chloride
pipe I.D. 30 mm
Insert
securely
Different
GLDPHWHUMRLQW
70 cm
or more
Fig. 1 Fig. 2 Fig. 3
)RUIXWXUHVHUYLFLQJJLYHH[WUDOHQJWKWR
the connecting wires.
0DNHHDUWKZLUHDOLWWOHORQJHUWKDQRWKHUV
(More than 60 mm)
'RQRWIROGWKHH[FHVVZLUHRUFUDPLWLQWR
VPDOOVSDFH7DNHFDXWLRQQRWWRGDPDJH
the wires.
%HVXUHWRDWWDFK HDFKVFUHZWRLWVFRU-
respondent terminal when securing the
FRUGDQGRUWKHZLUHWRWKHWHUPLQDOEORFN
Note: 'RQRWSODFHWKHZLUHVEHWZHHQWKH
indoor unit and the installation plate (1).
Damaged wire could cause heat genera-
WLRQRU¿UH
Wall
Outdoor
side
ø75 mm 5-7 mm
Liquid pipe
Gas pipe
Felt tape (4)
Indoor/outdoor unit
connecting wire (A)
Piping tape (G)
Level
Installation plate (1)
Center of
ø 75 mm hole
140 mm
or more
149 mm
or more
55 mm or more
118 mm or more for left and left
EDFNSLSLQJXVLQJVSDFHU
Ceiling
Wall
Wall
Fixing screw (2)
* Same for left hole.
Insert
the
scale. *
Align the
scale with
the line. *
100 mm
7HUPLQDOEORFN
Fixing screw
Indoor/outdoor unit
connecting wire (A)
VA clamp
Lead wire
15 mm
35 mm
,QGRRUWHUPLQDOEORFN
Indoor/outdoor
unit connecting
wire (A)
2XWGRRUWHUPLQDOEORFN
Earth wire
(green/yellow) S1S2S3
S1S2S3
Burr Copper pipe
Spare reamer
Pipe cutter
3-2. FLARING WORK
1)
Cut the copper pipe correctly with pipe cutter. (Fig. 1, 2)
&RPSOHWHO\UHPRYHDOOEXUUVIURPWKHFXWFURVVVHFWLRQ
of pipe. (Fig. 3)
3XWWKHHQGRIWKHFRSSHUSLSHWRGRZQZDUGGLUHFWLRQ
DV\RXUHPRYHEXUUVLQRUGHUWRDYRLGWROHWEXUUVGURS
in the piping.
5HPRYHÀDUHQXWVDWWDFKHGWRLQGRRUDQGRXWGRRUXQLWV
WKHQSXWWKHPRQSLSHKDYLQJFRPSOHWHGEXUUUHPRYDO
1RWSRVVLEOHWRSXWWKHPRQDIWHUÀDULQJZRUN
4) Flaring work (Fig. 4, 5). Firmly hold copper pipe in the
GLPHQVLRQVKRZQLQWKHWDEOH6HOHFW$PPIURPWKH
WDEOHDFFRUGLQJWRWKHWRRO\RXXVH
5) Check
&RPSDUHWKHÀDUHGZRUNZLWK)LJ
,IÀDUHLVQRWHGWREHGHIHFWLYHFXWRIIWKHÀDUHGVHFWLRQ
DQGGRÀDULQJZRUNDJDLQ
3-3. PIPE CONNECTION
)DVWHQÀDUHQXWZLWKDWRUTXHZUHQFKDVVSHFL¿HGLQWKHWDEOH
:KHQIDVWHQHGWRRWLJKWÀDUHQXWPD\EUHDNDIWHUDORQJSHULRGDQGFDXVHUHIULJHUDQWOHDN-
age.
%HVXUHWRZUDSLQVXODWLRQDURXQGWKHSLSLQJ'LUHFWFRQWDFWZLWKWKHEDUHSLSLQJPD\UHVXOW
LQEXUQVRUIURVWELWH
Indoor unit connection
&RQQHFWERWKOLTXLGDQGJDVSLSLQJVWRLQGRRUXQLW
$SSO\DWKLQFRDWRIUHIULJHUDWLRQRLO-RQWKHÀDUHGHQGVRIWKHSLSHV'RQRWDSSO\UHIULJHUD-
tion oil on screw threads. Excessive tightening torque will result in damage on the screw.
)RUFRQQHFWLRQ¿UVWDOLJQWKHFHQWHUWKHQWLJKWHQWKH¿UVWWRWXUQVRIÀDUHQXW
8VHWLJKWHQLQJWRUTXHWDEOHDERYHDVDJXLGHOLQHIRULQGRRUXQLWVLGHXQLRQMRLQWVHFWLRQDQG
WLJKWHQXVLQJWZRZUHQFKHV([FHVVLYHWLJKWHQLQJGDPDJHVWKHÀDUHVHFWLRQ
Pipe diameter
(mm) Nut
(mm)
A (mm) 7LJKWHQLQJWRUTXH
Clutch type
tool for
R32,R410A
Clutch type
tool
for R22
Wing nut
type tool
for R22 1P NJIFP
¡´ 17
0 to 0.5 1.0 to 1.5 1.5 to 2.0 13.7 to 17.7 140 to 180
¡´ 22 34.3 to 41.2 350 to 420
¡´ 26 2.0 to 2.5 49.0 to 56.4 500 to 575
¡´ 29 73.5 to 78.4 750 to 800
Copper
pipe
Good
7LOWHG8QHYHQ%XUUHG
No good
Fig. 1
Fig. 2
Clutch type
Flaring tool
Fig. 4Fig. 3
Smooth all
around
Even length
all around
Inside is shin-
ing without any
scratches.
Flare nut
Die
Fig. 5 Fig. 6
3. OUTDOOR UNIT INSTALLATION
Copper pipe
Wing nut type
WARNING
When installing the unit, securely connect the refrigerant
pipes before starting the compressor.
3-1. CONNECTING WIRES FOR OUTDOOR UNIT
1) Open the service panel.
2) Loosen terminal screw, and connect indoor/outdoor unit connecting wire (A) from
WKHLQGRRUXQLWFRUUHFWO\RQWKHWHUPLQDOEORFN%HFDUHIXOQRWWRPDNHPLVZLULQJ)L[
WKHZLUHWRWKHWHUPLQDOEORFNVHFXUHO\VRWKDWQRSDUWRILWVFRUHLVDSSHDUHGDQGQR
H[WHUQDOIRUFHLVFRQYH\HGWRWKHFRQQHFWLQJVHFWLRQRIWKHWHUPLQDOEORFN
3) Firmly tighten the terminal screws to prevent them from loosening. After tightening,
SXOOWKHZLUHVOLJKWO\WRFRQ¿UPWKDWWKH\GRQRWPRYH
4) Connect power supply cord (K).
5)
Fix indoor/outdoor unit connecting wire (A) and power supply cord (K) with the cord clamp.
6) Close the service panel securely.
0DNHHDUWKZLUHDOLWWOHORQJHUWKDQRWKHUV0RUHWKDQPP
)RUIXWXUHVHUYLFLQJJLYHH[WUDOHQJWKWRWKHFRQQHFWLQJZLUHV
%HVXUHWRDWWDFKHDFKVFUHZWRLWVFRUUHVSRQGHQWWHUPLQDOZKHQVHFXULQJWKHFRUG
DQGRUWKHZLUHWRWKHWHUPLQDOEORFN
Outdoor unit connection
&RQQHFWSLSHVWRVWRSYDOYHSLSHMRLQWRIWKHRXWGRRUXQLWLQWKH
same manner applied for indoor unit.
)RUWLJKWHQLQJXVHDWRUTXHZUHQFKRUVSDQQHUDQGXVHWKH
same tightening torque applied for indoor unit.
3-4. INSULATION AND TAPING
&RYHUSLSLQJMRLQWVZLWKSLSHFRYHU
2) For outdoor unit side, surely insulate every piping including valves.
3) Using piping tape (G), apply taping starting from the entry of outdoor unit.
6WRSWKHHQGRISLSLQJWDSH*ZLWKWDSHZLWKDGKHVLYHDJHQWDWWDFKHG
:KHQSLSLQJKDYHWREHDUUDQJHGWKURXJKDERYHFHLOLQJFORVHWRUZKHUHWKHWHPSHUDWXUH
and humidity are high, wind additional commercially sold insulation to prevent condensa-
tion.
35 mm 15 mm
Lead wire
Power supply cord (K)
Cord clamp
7HUPLQDOEORFN
Power supply
cord (K)
Indoor/outdoor
unit connecting
wire (A)
WARNING
7RDYRLGULVNRI¿UHÀDUHFRQQHFWLRQVKRXOGEHLQVWDOOHGRXWGRRUV
5HXVDEOHPHFKDQLFDOFRQQHFWRUVDQGÀDUHGMRLQWVDUHQRWDOORZHGLQGRRUV
:KHQFRQQHFWLQJWKHUHIULJHUDQWSLSLQJE\EUD]LQJUDWKHUWKDQXVLQJÀDUHFRQQHFWLRQV
FRPSOHWHDOOEUD]LQJSULRUWRFRQQHFWLQJLQGRRUXQLWWRRXWGRRUXQLW
4-1. PURGING PROCEDURES AND LEAK TEST
5HPRYHVHUYLFHSRUWFDSRIVWRSYDOYHRQWKHVLGHRIWKHRXWGRRUXQLWJDVSLSH7KHVWRS
valves are fully closed and covered in caps in initial state.)
2) Connect gauge manifold valve and vacuum pump to service port of stop valve on the
gas pipe side of the outdoor unit.
4-2. TEST RUN
1) Insert power supply plug into the power outlet and/or turn
RQWKHEUHDNHU
3UHVVWKH(26:7HVWUXQZLOOEHSHUIRUPHGIRUPLQXWHV
,IWKHXSSHUODPSRIWKHRSHUDWLRQLQGLFDWRUEOLQNVHYHU\
seconds, inspect the indoor/outdoor unit connecting wire
(A) for mis-wiring. After the test run, emergency mode (set
temperature 24ºC) will start.
7RVWRSRSHUDWLRQSUHVVWKH(26:VHYHUDOWLPHVXQWLODOO
LEDlampsturnoff.Refertooperatinginstructionsfordetails.
Checking the remote (infrared) signal reception
3UHVVWKH2))21EXWWRQRQWKHUHPRWHFRQWUROOHUDQGFKHFNWKDWDQHOHFWURQLFVRXQG
LVKHDUGIURPWKHLQGRRUXQLW3UHVVWKH2))21EXWWRQDJDLQWRWXUQWKHDLUFRQGLWLRQHURII
2QFHWKHFRPSUHVVRUVWRSVWKHUHVWDUWSUHYHQWLYHGHYLFHRSHUDWHVVRWKHFRPSUHVVRU
will not operate for 3 minutes to protect the air conditioner.
4-3. AUTO RESTART FUNCTION
7KLVSURGXFWLVHTXLSSHGZLWKDQDXWRUHVWDUWIXQFWLRQ:KHQWKHSRZHUVXSSO\LVVWRSSHG
GXULQJRSHUDWLRQVXFKDVGXULQJEODFNRXWVWKHIXQFWLRQDXWRPDWLFDOO\VWDUWVRSHUDWLRQLQ
the previous setting once the power supply is resumed. (Refer to the operating instructions
for details.)
4-4. EXPLANATION TO THE USER
8VLQJWKH23(5$7,1*,16758&7,216H[SODLQWRWKHXVHUKRZWRXVHWKHDLUFRQGL-
WLRQHUKRZWRXVHWKHUHPRWHFRQWUROOHUKRZWRUHPRYHWKHDLU¿OWHUVKRZWRUHPRYHRU
put the remote controller in the remote controller holder, how to clean, precautions for
operation, etc.).
5HFRPPHQGWKHXVHUWRUHDGWKH23(5$7,1*,16758&7,216FDUHIXOO\
Stop valve for
GAS
Stop valve cap
7RUTXHWR
1P
WRNJIFP
Vacuum pump (or the vacuum
pump with the function to
SUHYHQWWKHEDFNÀRZ
Gauge manifold valve
(for R32, R410A)
Compound pressure gauge
(for R32, R410A)
–0.101 MPa
(–760 mmHg)
Handle
Low Handle High
Adapter for
preventing the
EDFNÀRZ
Charge hose
(for R32, R410A)
*Close
*Open
Hexagonal wrench
Precautions when using the control valve When attaching the control valve
to the service port, valve core may
deform or loosen if excess pressure
LVDSSOLHG7KLVPD\FDXVHJDVOHDN
Service
port
Body
Close
<R32>
Open
Control
valve
A
When attaching the control valve to
the service port, make sure that the
valve core is in closed position, and
then tighten part A. Do not tighten
SDUW$RUWXUQWKH ERG\ZKHQ YDOYH
core is in open position.
Service port cap
7RUTXHWR
1P140 to
180 kgfcm)
*4 to 5 turns
3) Run the vacuum pump. (Vacuumize until 500 microns is achieved.)
4) Checkthe vacuum with gauge manifold valve, then close gaugemanifold valve, and stop
the vacuum pump.
5) Leave as it is for one or two minutes. Make sure pointer gauge manifold valve remains
LQWKHVDPHSRVLWLRQ&RQ¿UPWKDWSUHVVXUHJDXJHVKRZV±03D>*DXJH@±
mmHg).
6) Remove gauge manifold valve quickly from service port of stop valve.
$IWHUUHIULJHUDQWSLSHVDUHFRQQHFWHGDQGHYDFXDWHGIXOO\RSHQDOOVWRSYDOYHVRQERWK
sidesof gas pipe and liquid pipe. Operating without fully opening lowers the performance
DQGWKLVFDXVHVWURXEOH
5HIHUWRDQGFKDUJHWKHSUHVFULEHGDPRXQWRIUHIULJHUDQWLIQHHGHG%HVXUHWRFKDUJH
slowly with liquid refrigerant. Otherwise, composition of the refrigerant in the system may
EHFKDQJHGDQGDIIHFWSHUIRUPDQFHRIWKHDLUFRQGLWLRQHU
7LJKWHQFDSRIVHUYLFHSRUWWRREWDLQWKHLQLWLDOVWDWXV
10) Leak test
Stop valve
for LIQUID
Caution:
$IWHUWHVWUXQRUUHPRWHVLJQDOUHFHSWLRQFKHFNWXUQRIIWKHXQLWZLWKWKH(26:RU
WKHUHPRWHFRQWUROOHUEHIRUHWXUQLQJRIIWKHSRZHUVXSSO\1RWGRLQJVRZLOOFDXVHWKH
unit to start operation automatically when power supply is resumed.
To the user
$IWHULQVWDOOLQJWKHXQLWPDNHVXUHWRH[SODLQWKHXVHUDERXWDXWRUHVWDUWIXQFWLRQ
,I DXWR UHVWDUW IXQFWLRQ LV XQQHFHVVDU\ LW FDQ EH GHDFWLYDWHG &RQVXOW WKH VHUYLFH
representative to deactivate the function. Refer to the service manual for details.
4. PURGING PROCEDURES, LEAK TEST, AND TEST RUN
Pressure gauge
(for R32, R410A)
Charge
hose
Make sure to
replace the cap after
the operation.
WARNING
TRDYRLG ULVN RI ¿UH PDNH VXUH WKDW WKHUH DUH QR ÀDPPDEOH KD]DUGV RU LJQLWLRQ
risks before opening the stop valves.
Emergency
operation switch
(E.O. SW)
5-1. REMOVING AND INSTALLING THE PANEL ASSEM
BLY 5-3. PUMPING DOWN
When relocating or disposing of the air conditioner, pump down the system following the
SURFHGXUHEHORZVRWKDWQRUHIULJHUDQWLVUHOHDVHGLQWRWKHDWPRVSKHUH
1) Connect the gauge manifold valve to the service port of the stop valve on the gas pipe side
of the outdoor unit.
2) Fully close the stop valve on the liquid pipe side of the outdoor unit.
3) Close the stop valve on the gas pipe side of the outdoor unit almost completely so that it
FDQEHHDVLO\FORVHGIXOO\ZKHQWKHSUHVVXUHJDXJHVKRZV03D>*DXJH@NJIFP2).
4) Start the emergency COOL operation.
7RVWDUWWKHemergency operation in COOL mode, disconnect the power supply plug and/
RUWXUQRIIWKHEUHDNHU$IWHUVHFRQGV FRQQHFWWKHSRZHUVXSSO\SOXJDQGRUWXUQRQ
WKHEUHDNHUDQGWKHQSUHVVWKH(26:RQFH7KHemergency COOL operationFDQEH
performed continuously for up to 30 minutes.)
5) Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure gauge
VKRZVWR03D>*DXJH@DSSUR[WRNJIFP2).
6) Stop the emergency COOL operation.
Press the E.O. SW several times until all LED lamps turn off. Refer to operating instructions
for details.
5. RELOCATION AND MAINTENANCE
When pumping down the refrigerant, stop the compressor before disconnecting the
refrigerant pipes. The compressor may burst if air etc. get into it.
WARNING
5-2. REMOVING THE INDOOR UNIT
5HPRYHWKHERWWRPRIWKHLQGRRUXQLWIURPWKHLQVWDOODWLRQ
plate.
:KHQUHOHDVLQJWKHFRUQHUSDUWUHOHDVHERWKOHIWDQGULJKW
ERWWRPFRUQHUSDUWRILQGRRUXQLWDQGSXOOLWGRZQZDUGDQG
IRUZDUGDVVKRZQLQWKH¿JXUHRQWKHULJKW
If the above method cannot be used
5HPRYHWKHSDQHO7KHQLQVHUWKH[DJRQDOZUHQFKHVLQWRWKHVTXDUHKROHVRQWKHOHIW
DQGULJKWVLGHVRIWKHXQLWDQGSXVKWKHPXSDVVKRZQLQWKHIROORZLQJ¿JXUH7KHERW-
tom of the indoor unit lowers and releases the hooks.
Removal procedure
5HPRYHWKHVFUHZVZKLFK¿[WKHSDQHODVVHPEO\
5HPRYHWKHSDQHODVVHPEO\%HVXUHWRUHPRYHLWV
ERWWRPHQG¿UVW
Installation procedure
,QVWDOO WKH SDQHO DVVHPEO\ IROORZLQJ WKH UHPRYDO
procedure in reverse.
%HVXUHWRSUHVVWKHSRVLWLRQVDVLQGLFDWHGE\WKH
DUURZVLQRUGHUWRDWWDFKWKHDVVHPEO\FRPSOHWHO\
to the unit.
Push Lower
Square hole
+($'2)),&(72.<2%8,/',1*0$58128&+,&+,<2'$.8
72.<2-$3$1
This manual suits for next models
3
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